Import Question JSON

Current Question (ID: 8521)

Question:

$\text{The degree of hydrolysis of the salt is independent of the concentration of a solution:}$

Options:

1. $\text{NH}_4\text{Cl}$
2. $\text{NH}_4\text{CN}$
3. $(\text{NH}_4)_2\text{SO}_4$
4. $\text{All of the above}$

Solution:

\text{Hint: Degree of hydrolysis of a weak acid and weak base salt is independent of the concentration of a solution.} \text{Explanation:} \text{The formula of the degree of hydrolysis for the salt of a weak acid and weak base is} \alpha = \sqrt{\frac{K_w}{K_a \times K_b}} \text{The degree of hydrolysis of a weak acid and weak base salt is independent of the concentration of a solution.} \text{Thus, NH}_4\text{CN is a salt of NH}_4\text{OH (base) and HCN (weak acid).} \text{Hence, option 2 is the correct answer.}

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}